Here’s a glimpse at Fantasy Source Football’s running back rankings for Week 6. Do you know who’s No. 1? Here’s a hint: It’s not Adrian Peterson. Fantasy Source Football members get all of our weekly position rankings, player projections, matchups and more for just $4.99 per month.

Baltimore Ravens running back Ray Rice is coming off a two-touchdown performance and faces the Packers, who have allowed three scores to running backs in four games. For Rice's Week 6 projections, join Fantasy Source Football. (Wilfredo Lee/AP)

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No. 10: Darren Sproles, Saints

New Orleans Saints running back Darren Sproles will be heavily involved in the passing attack in what should be a shootout with the Patriots. For Sproles' Week 6 projections, join Fantasy Source Football. (Bill Haber/AP)

Houston Texans running back Arian Foster is heating up and gets a great matchup against the Rams, who are allowing the fifth-most fantasy points per game to running backs. For Foster's Week 6 projections, join Fantasy Source Football. (Marcio Jose Sanchez/AP)

The Detroit Lions' Reggie Bush could be the focal point of the offense and faces the Browns, who have already allowed six rushing touchdowns to running backs. For Bush's Week 6 projections, join Fantasy Source Football. (Jeffrey Phelps/AP)

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No. 5. Jamaal Charles, Chiefs

Kansas City Chiefs running back Jamaal Charles gets a tough matchup on paper against a surprising Raiders run defense, but we trust him implicitly. For Charles' Week 6 projections, join Fantasy Source Football. (Mark Zaleski/AP)

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No. 4: LeSean McCoy, Eagles

The Philadelphia Eagles' LeSean McCoy may have the toughest matchup of the top five against Tampa, but Philly will need Shady to make plays with Michael Vick out. For McCoy's Week 6 projections, join Fantasy Source Football. (Bill Kostroun/AP)